Extreme rain in United States, 19 March to 2 April 2021

Name: Extreme rain in United States, 19 March to 2 April 2021
Start: 2021-03-19
End: 2021-04-02
Location: United States

Extreme rain in United States, 19 March to 2 April 2021: 866 records at 795 stations, peak on 26 March 2021. Closed.

Data as of 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Key Facts

Extreme rain in United States, 19 March to 2 April 2021 set or tied 866 station records at 795 stations.
It ran from 19 March 2021 to 2 April 2021 (15 days) and its peak day was 26 March 2021.
Status: closed.
Highlands set a daily record precipitation of 167.9 mm (6.6 in) on 26 March 2021.
The busiest day was 24 March 2021 with 147 records.
The oldest broken record in the ranked list had stood for 143 years.

Footprint

19 March to 2 April 2021

The area covered by Extreme rain in United States, 19 March to 2 April 2021 is outlined, with 20 of the stations that set records marked, coloured by record type. Made with Natural Earth.

Footprint of Extreme rain in United States, 19 March to 2 April 2021: stations that set records in the event
Station	Type	Value	Date
Highlands	Record daily precipitation	167.9 mm (6.6 in)	2021-03-26
Shelby 2 NW	Record daily precipitation	102.1 mm (4.0 in)	2021-03-26
Saint Bernard	Record daily precipitation	106.9 mm (4.2 in)	2021-03-25
Kingston Springs	Record daily precipitation	125.0 mm (4.9 in)	2021-03-28
Tazewell	Record daily precipitation	134.6 mm (5.3 in)	2021-03-28
Savannah 6 SW	Record daily precipitation	148.8 mm (5.9 in)	2021-03-31
Hendersonville 1 NE	Record daily precipitation	102.4 mm (4.0 in)	2021-03-26
Clayton 1 SSW	Record daily precipitation	184.2 mm (7.3 in)	2021-03-26
Rosman	Record daily precipitation	148.6 mm (5.9 in)	2021-03-26
Mt Clemens Ang Base	Record daily precipitation	36.8 mm (1.4 in)	2021-03-26
New Orleans AP	Record daily precipitation	140.7 mm (5.5 in)	2021-03-23
Slidell	Record daily precipitation	143.3 mm (5.6 in)	2021-03-24
Lake Toxaway 2 SW	Record daily precipitation	174.8 mm (6.9 in)	2021-03-26
Tryon	Record daily precipitation	120.9 mm (4.8 in)	2021-03-26
Carthage	Record daily precipitation	155.2 mm (6.1 in)	2021-03-28
Wilsonville	Record daily precipitation	33.5 mm (1.3 in)	2021-03-23
Atlantic City Marina	Record daily precipitation	52.1 mm (2.1 in)	2021-03-24
Elizabethton	Record daily precipitation	54.6 mm (2.1 in)	2021-03-28
Thibodaux 4 SE	Record daily precipitation	220.5 mm (8.7 in)	2021-03-24
Holdrege	Record daily precipitation	44.2 mm (1.7 in)	2021-03-23

Records per Day

Peak day 147

Records set or tied each day from 19 March 2021 to 2 April 2021. The most in one day was 147 on 24 March 2021.

Records per day during Extreme rain in United States, 19 March to 2 April 2021
Date	Records
2021-03-19	18
2021-03-20	53
2021-03-21	25
2021-03-22	37
2021-03-23	145
2021-03-24	147
2021-03-25	117
2021-03-26	147
2021-03-27	20
2021-03-28	72
2021-03-29	14
2021-03-30	2
2021-03-31	46
2021-04-01	22
2021-04-02	1

Top Records by Margin

Margin over the record replaced

Top records of Extreme rain in United States, 19 March to 2 April 2021 ranked by margin
Lake Toxaway 2 SW, 03-26	113.3 mm (4.5 in)
Thibodaux 4 SE, 03-24	113.3 mm (4.5 in)
Slidell, 03-24	107.7 mm (4.2 in)
Highlands, 03-26	103.9 mm (4.1 in)
Rosman, 03-26	91.2 mm (3.6 in)
Kingston Springs, 03-28	83.1 mm (3.3 in)
New Orleans AP, 03-23	80.0 mm (3.1 in)
Tryon, 03-26	77.0 mm (3.0 in)
Saint Bernard, 03-25	66.3 mm (2.6 in)
Shelby 2 NW, 03-26	65.3 mm (2.6 in)
Clayton 1 SSW, 03-26	62.3 mm (2.5 in)
Hendersonville 1 NE, 03-26	60.7 mm (2.4 in)
Savannah 6 SW, 03-31	57.4 mm (2.3 in)
Tazewell, 03-28	51.8 mm (2.0 in)
Carthage, 03-28	39.1 mm (1.5 in)

Margin is how far the new value is beyond the record it replaced. Ties are not shown.

Margin Against Age of the Broken Record

500 records plotted by how far they beat the old record (across) and how many years the old record had stood (up). Long standing records beaten by a wide margin sit in the top right.

Margin against age of the broken record in Extreme rain in United States, 19 March to 2 April 2021
Margin (mm)	Years the old record stood
104	100
65	84
66	72
83	70
57	88
52	48
61	59
62	42
91	56
21	87
108	63
113	56
77	48
39	58
80	63
18	120
23	121
25	108
113	9
19	119
30	120
19	92
15	108
73	56
80	34
19	84
47	56
58	43
8	104
30	40
53	56
59	27
29	68
19	143
35	68
21	71
35	88
29	120
61	27
105	28
17	112
18	76
93	34
41	56
49	36
81	27
11	108
6	68
48	26
44	56
71	27
20	40
9	107
28	84
18	40
33	84
20	64
15	67
11	70
23	42
26	53
21	86
14	120
56	24
56	48
28	46
18	51
17	51
10	112
39	46
41	27
7	108
37	68
7	119
9	56
34	43
27	1
35	27
11	39
5	115
16	72
17	51
12	122
40	22
27	54
8	91
15	108
25	59
44	27
7	60
26	42
4	71
11	28
40	7
19	56
8	110
18	68
9	40
3	122
15	92
17	68
58	4
13	72
9	56
4	90
5	129
29	46
45	40
12	78
17	46
18	68
2	126
13	38
26	63
4	84
12	94
7	108
20	42
3	87
2	102
42	8
4	121
3	108
2	104
33	20
13	83
1	104
14	52
33	42
10	52
2	108
26	28
4	88
28	56
9	40
9	60
22	42
3	75
15	55
1	119
26	4
33	36
2	112
1	120
25	29
29	52
35	40
19	71
24	60
17	68
12	52
4	80
13	75
1	100
2	92
12	51
6	47
7	71
5	70
6	68
1	108
18	56
7	86
22	46
1	119
6	69
49	24
3	90
29	50
9	56
4	71
44	16
19	60
10	16
9	40
8	71
41	38
9	58
16	32
52	4
5	88
12	48
10	30
27	43
40	27
12	46
48	27
31	27
40	27
7	40
7	40
18	34
23	63
2	45
26	63
9	51
12	30
15	76
5	84
22	56

Compared With Other Events

Station records per event

Station records in Extreme rain in United States, 19 March to 2 April 2021 compared with similar events
Extreme rain in United States and Mexico, 23 February to 15 March 2019	2,223 records
Extreme rain in United States, 3 to 19 January 2024	2,133 records
Extreme rain in Australia, 7 to 26 March 2021	2,099 records
Extreme rain in United States and Mexico, 29 September to 19 October 2018	1,970 records
Extreme rain in United States, 19 December 2022 to 13 January 2023	1,941 records
Extreme rain in United States, 19 March to 2 April 2021 (this event)	866 records

Every Record Set

20 of 866

Every record set or tied during Extreme rain in United States, 19 March to 2 April 2021, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2021-03-23	New Orleans AP	Record daily precipitation	140.7 mm (5.5 in)	80.0 mm (3.1 in)	63	64 of 100 (Major)
2021-03-23	Wilsonville	Record daily precipitation	33.5 mm (1.3 in)	17.8 mm (0.7 in)	120	63 of 100 (Major)
2021-03-23	Holdrege	Record daily precipitation	44.2 mm (1.7 in)	18.8 mm (0.7 in)	119	61 of 100 (Major)
2021-03-24	Slidell	Record daily precipitation	143.3 mm (5.6 in)	107.7 mm (4.2 in)	63	64 of 100 (Major)
2021-03-24	Atlantic City Marina	Record daily precipitation	52.1 mm (2.1 in)	24.7 mm (1.0 in)	108	63 of 100 (Major)
2021-03-24	Thibodaux 4 SE	Record daily precipitation	220.5 mm (8.7 in)	113.3 mm (4.5 in)	9	62 of 100 (Major)
2021-03-25	Saint Bernard	Record daily precipitation	106.9 mm (4.2 in)	66.3 mm (2.6 in)	72	69 of 100 (Major)
2021-03-26	Highlands	Record daily precipitation	167.9 mm (6.6 in)	103.9 mm (4.1 in)	100	80 of 100 (Exceptional)
2021-03-26	Shelby 2 NW	Record daily precipitation	102.1 mm (4.0 in)	65.3 mm (2.6 in)	84	75 of 100 (Major)
2021-03-26	Hendersonville 1 NE	Record daily precipitation	102.4 mm (4.0 in)	60.7 mm (2.4 in)	59	66 of 100 (Major)
2021-03-26	Clayton 1 SSW	Record daily precipitation	184.2 mm (7.3 in)	62.3 mm (2.5 in)	42	65 of 100 (Major)
2021-03-26	Rosman	Record daily precipitation	148.6 mm (5.9 in)	91.2 mm (3.6 in)	56	65 of 100 (Major)
2021-03-26	Mt Clemens Ang Base	Record daily precipitation	36.8 mm (1.4 in)	20.5 mm (0.8 in)	87	65 of 100 (Major)
2021-03-26	Lake Toxaway 2 SW	Record daily precipitation	174.8 mm (6.9 in)	113.3 mm (4.5 in)	56	64 of 100 (Major)
2021-03-26	Tryon	Record daily precipitation	120.9 mm (4.8 in)	77.0 mm (3.0 in)	48	64 of 100 (Major)
2021-03-28	Kingston Springs	Record daily precipitation	125.0 mm (4.9 in)	83.1 mm (3.3 in)	70	69 of 100 (Major)
2021-03-28	Tazewell	Record daily precipitation	134.6 mm (5.3 in)	51.8 mm (2.0 in)	48	69 of 100 (Major)
2021-03-28	Carthage	Record daily precipitation	155.2 mm (6.1 in)	39.1 mm (1.5 in)	58	64 of 100 (Major)
2021-03-28	Elizabethton	Record daily precipitation	54.6 mm (2.1 in)	22.8 mm (0.9 in)	121	63 of 100 (Major)
2021-03-31	Savannah 6 SW	Record daily precipitation	148.8 mm (5.9 in)	57.4 mm (2.3 in)	88	69 of 100 (Major)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 866 records the event counts. The counts above use the full total.

Related Headlines

Third party news, headline and link only

Download the Data

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17. Events are found by this site from station records and are not official designations. Records are provisional until reprocessed.

Margin (mm)	Years the old record stood
104	100
65	84
66	72
83	70
57	88
52	48
61	59
62	42
91	56
21	87
108	63
113	56
77	48
39	58
80	63
18	120
23	121
25	108
113	9
19	119
30	120
19	92
15	108
73	56
80	34
19	84
47	56
58	43
8	104
30	40
53	56
59	27
29	68
19	143
35	68
21	71
35	88
29	120
61	27
105	28
17	112
18	76
93	34
41	56
49	36
81	27
11	108
6	68
48	26
44	56
71	27
20	40
9	107
28	84
18	40
33	84
20	64
15	67
11	70
23	42
26	53
21	86
14	120
56	24
56	48
28	46
18	51
17	51
10	112
39	46
41	27
7	108
37	68
7	119
9	56
34	43
27	1
35	27
11	39
5	115
16	72
17	51
12	122
40	22
27	54
8	91
15	108
25	59
44	27
7	60
26	42
4	71
11	28
40	7
19	56
8	110
18	68
9	40
3	122
15	92
17	68
58	4
13	72
9	56
4	90
5	129
29	46
45	40
12	78
17	46
18	68
2	126
13	38
26	63
4	84
12	94
7	108
20	42
3	87
2	102
42	8
4	121
3	108
2	104
33	20
13	83
1	104
14	52
33	42
10	52
2	108
26	28
4	88
28	56
9	40
9	60
22	42
3	75
15	55
1	119
26	4
33	36
2	112
1	120
25	29
29	52
35	40
19	71
24	60
17	68
12	52
4	80
13	75
1	100
2	92
12	51
6	47
7	71
5	70
6	68
1	108
18	56
7	86
22	46
1	119
6	69
49	24
3	90
29	50
9	56
4	71
44	16
19	60
10	16
9	40
8	71
41	38
9	58
16	32
52	4
5	88
12	48
10	30
27	43
40	27
12	46
48	27
31	27
40	27
7	40
7	40
18	34
23	63
2	45
26	63
9	51
12	30
15	76
5	84
22	56

Margin (mm)	Years the old record stood
104	100
65	84
66	72
83	70
57	88
52	48
61	59
62	42
91	56
21	87
108	63
113	56
77	48
39	58
80	63
18	120
23	121
25	108
113	9
19	119
30	120
19	92
15	108
73	56
80	34
19	84
47	56
58	43
8	104
30	40
53	56
59	27
29	68
19	143
35	68
21	71
35	88
29	120
61	27
105	28
17	112
18	76
93	34
41	56
49	36
81	27
11	108
6	68
48	26
44	56
71	27
20	40
9	107
28	84
18	40
33	84
20	64
15	67
11	70
23	42
26	53
21	86
14	120
56	24
56	48
28	46
18	51
17	51
10	112
39	46
41	27
7	108
37	68
7	119
9	56
34	43
27	1
35	27
11	39
5	115
16	72
17	51
12	122
40	22
27	54
8	91
15	108
25	59
44	27
7	60
26	42
4	71
11	28
40	7
19	56
8	110
18	68
9	40
3	122
15	92
17	68
58	4
13	72
9	56
4	90
5	129
29	46
45	40
12	78
17	46
18	68
2	126
13	38
26	63
4	84
12	94
7	108
20	42
3	87
2	102
42	8
4	121
3	108
2	104
33	20
13	83
1	104
14	52
33	42
10	52
2	108
26	28
4	88
28	56
9	40
9	60
22	42
3	75
15	55
1	119
26	4
33	36
2	112
1	120
25	29
29	52
35	40
19	71
24	60
17	68
12	52
4	80
13	75
1	100
2	92
12	51
6	47
7	71
5	70
6	68
1	108
18	56
7	86
22	46
1	119
6	69
49	24
3	90
29	50
9	56
4	71
44	16
19	60
10	16
9	40
8	71
41	38
9	58
16	32
52	4
5	88
12	48
10	30
27	43
40	27
12	46
48	27
31	27
40	27
7	40
7	40
18	34
23	63
2	45
26	63
9	51
12	30
15	76
5	84
22	56

Margin (mm)	Years the old record stood
104	100
65	84
66	72
83	70
57	88
52	48
61	59
62	42
91	56
21	87
108	63
113	56
77	48
39	58
80	63
18	120
23	121
25	108
113	9
19	119
30	120
19	92
15	108
73	56
80	34
19	84
47	56
58	43
8	104
30	40
53	56
59	27
29	68
19	143
35	68
21	71
35	88
29	120
61	27
105	28
17	112
18	76
93	34
41	56
49	36
81	27
11	108
6	68
48	26
44	56
71	27
20	40
9	107
28	84
18	40
33	84
20	64
15	67
11	70
23	42
26	53
21	86
14	120
56	24
56	48
28	46
18	51
17	51
10	112
39	46
41	27
7	108
37	68
7	119
9	56
34	43
27	1
35	27
11	39
5	115
16	72
17	51
12	122
40	22
27	54
8	91
15	108
25	59
44	27
7	60
26	42
4	71
11	28
40	7
19	56
8	110
18	68
9	40
3	122
15	92
17	68
58	4
13	72
9	56
4	90
5	129
29	46
45	40
12	78
17	46
18	68
2	126
13	38
26	63
4	84
12	94
7	108
20	42
3	87
2	102
42	8
4	121
3	108
2	104
33	20
13	83
1	104
14	52
33	42
10	52
2	108
26	28
4	88
28	56
9	40
9	60
22	42
3	75
15	55
1	119
26	4
33	36
2	112
1	120
25	29
29	52
35	40
19	71
24	60
17	68
12	52
4	80
13	75
1	100
2	92
12	51
6	47
7	71
5	70
6	68
1	108
18	56
7	86
22	46
1	119
6	69
49	24
3	90
29	50
9	56
4	71
44	16
19	60
10	16
9	40
8	71
41	38
9	58
16	32
52	4
5	88
12	48
10	30
27	43
40	27
12	46
48	27
31	27
40	27
7	40
7	40
18	34
23	63
2	45
26	63
9	51
12	30
15	76
5	84
22	56